A5031695268- Aquaculture Nutrition and Growth
- Aquaculture disease management and microbiota
- Reproductive biology and impacts on aquatic species
- Aquatic life and conservation
- Animal Nutrition and Physiology
- Fatty Acid Research and Health
- Pharmaceutical and Antibiotic Environmental Impacts
- Antioxidant Activity and Oxidative Stress
- Marine Bivalve and Aquaculture Studies
- Moringa oleifera research and applications
- Fish Biology and Ecology Studies
- Physiological and biochemical adaptations
- Marine and fisheries research
- Meat and Animal Product Quality
- Fish biology, ecology, and behavior
- Water Quality Monitoring Technologies
- Seaweed-derived Bioactive Compounds
- Identification and Quantification in Food
- Antibiotic Resistance in Bacteria
- Algal biology and biofuel production
- Turtle Biology and Conservation
- Insect and Pesticide Research
- Pharmacological Effects and Assays
- Phytase and its Applications
- Coral and Marine Ecosystems Studies
University of Trás-os-Montes and Alto Douro
2013-2024
Universidade do Porto
2006-2024
Association for the Development of Douro Viticulture
1994-2021
Centro Interdisciplinar de Investigação Marinha e Ambiental
2005-2014
Koi carp and goldfish value increases with intensity of skin colour, which is an important quality criterion. Fish cannot fully synthesize their own carotenoid colourings these must therefore be included in diet. Two trials were undertaken to investigate colour enhancement ornamental species (i.e. three chromatic varieties koi (Cyprinus carpio), namely Kawari (red), Showa (black red) Bekko white) (Carassius auratus)) by feeding a dietary supplement freshwater microalgal biomass [Chlorella...
A 12-week feeding trial was conducted to evaluate the effects of fish oil replacement by soybean oil, on lipid distribution and liver histology two commercially important finfish species: rainbow trout (Oncorhynchus mykiss) European sea bass (Dicentrarchus labrax). Sea (16.2 ± 0.5 g; mean SD) (52.1 g) juveniles were fed one three isonitrogenous (500 g kg−1 CP) isoenergetic (19 kJ g−1) diets, containing 0% (control, diet A), 25% (diet B) 50% C) oil. At end experiment, deposition evaluated in...
Probiotic administration can be a nutritional strategy to improve the immune response and growth performance of fish. The current study aimed evaluate effects probiotic blend (Bacillus sp., Pediococcus Enterococcus Lactobacillus sp.) as dietary supplement on performance, feed utilization, innate oxidative stress responses intestinal morphology in juvenile Nile tilapia (Oreochromis niloticus). was incorporated into basal diet at three concentrations: 0 g/kg (A0: control), 3 (A1: 1.0×106...
Insects are emerging as a sustainable alternative to fishmeal and fish oil in aquafeeds. This study assessed the effect of graded incorporation levels defatted yellow mealworm (Tenebrio molitor) protein meal on juvenile rainbow trout (Oncorhynchus mykiss) growth performance, body composition, apparent nutrient digestibility. The trial comprised five dietary treatments: control diet with 25% fishmeal, four experimental diets at 5%, 7.5%, 15%, or 25%, which corresponded replacement 20%, 30%,...
The aim of this work was to investigate the effect different carotenoid sources/concentrations and temperature on goldfish (Carassius auratus) skin pigmentation. In first trial (trial A), source (natural – microalgae Chlorella vulgaris synthetic Carophyll Pink) concentration (45, 80 120 mg pigment kg−1 diet) tested. Six homogeneous duplicate groups juvenile (7.4 g) were fed, for 5 weeks, one diets containing 45, or total pigments C. biomass astaxanthin per kg diet (Cv45, Cv80, Cv120, Ax45,...
A study was undertaken to determine the dietary protein level for optimal growth performance and body composition of juvenile Senegalese sole. Five experimental extruded diets were formulated contain increasing levels [430, 480, 530, 570 600 g kg−1 dry matter (DM)] a constant lipid level, ranging from 100 130 g kg−1 DM. Triplicate groups 35 sole (initial weight: 11.9 ± 0.5 g) grown over 84 days in 60-L tanks supplied with recirculated seawater. Fish fed by means automatic feeders eight meals...
This paper describes a method for the determination of 41 antibiotics from seven different classes in gilthead sea bream (Sparus aurata) by ultra-high-performance liquid chromatography with tandem mass spectrometry (UPLC-MS/MS). Sulfonamides, trimethoprim, tetracyclines, macrolides, quinolones, penicillins and chloramphenicol were simultaneously determined. Fourteen procedures sample treatment tested an extraction acetonitrile ethylenediaminetetra acetic acid was found to be best option. The...
Dietary protein quality plays a key role in maintaining intestinal mucosal integrity, but also modulates the growth of luminal microorganisms. This work assessed effect dietary sources on performance, gut morphology, and microbiome Nile tilapia. Four isonitrogenous isolipidic diets comprising equivalent amounts supply derived from either PLANT, ANIMAL, INSECT, or BACTERIAL (bacterial biomass) were fed to triplicate groups fish (IBW: 12 g) for 46 days. Fish ANIMAL showed significantly higher...
Abstract The presence of conspecifics plays a crucial role in mitigating stress responses social teleost species and holds potential for enhancing welfare captive fish. While studies on buffering effects have typically focussed single species, marked interspecific differences can exist. Here, we conducted an analysis response two the most extensively farmed fish, Nile tilapia koi carp. Subjects were exposed to behavioural assay (open‐field test) three conditions simulating increasing levels...
A great deal of attention has been paid to the replacement high levels fishmeal present in commercial diets by alternative animal and vegetable protein sources. There are some contradictory data on effects partial or total dietary especially regarding The effect technological treatments applied materials quality control reasons for these results. ten week growth trial was conducted study plant proteins rainbow trout. For this purpose, four practical were formulated: a fishmeal-based diet,...